10th GSEB Science And Technology MCQ 1

SSC Science and Technology Quiz 1

Quiz

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1. Which of the following oxides is of neutral nature?
   1.   N₂O
   2.   H₂O
   3.   SO₂
   4.   CO₂
2. What is the molecular formula of ethyne?
   1.   C₂H₂
   2.   CH₄
   3.   H₂ O
   4.   HNO₃
3. The unit of electric potential difference is .............
   1.   J/C
   2.   C/J
   3.   J
   4.   J.C
4. The focal length of plane mirror is ..............
   1.   Equal to object distance
   2.   None
   3.   Infinity
   4.   Uncertain
5. Which of the following solution is having pH = 2 ?
   1.   0.01M HCI
   2.   0.001M HCL
   3.   0.001M NaCI
   4.   0.01M NaCI
6. ................. is the most brilliant planet of the solar system.
   1.   Jupiter
   2.   Venus
   3.   None
   4.   Earth
7. Which coloured wire is used for earthing?
   1.   Red
   2.   Green
   3.   Black
   4.   Yellow
8. Poles of Mars are covered by ...............
   1.   Hidrogen
   2.   dry-ice
   3.   Mix-ice
   4.   Nitrogen
9. In human eye, the image of an object is formed at ............
   1.   Cornea
   2.   Iris
   3.   Retina
   4.   Pupil
10. The distilled water acts as .......... for the electricity.
    1.   Semi-conductor
    2.   Semi-insulator
    3.   Insulator
    4.   Conductor
11. Which nonmetallic element is in liquid form?
    1.   Nitrogen
    2.   Bromine
    3.   HCL
    4.   Carbon
12. 1 meter = ............ nanometer.
    1.   10¹⁰
    2.   10⁹
    3.   10^-9
    4.   10^-10
13. By which reaction metal is obtained from metal oxide?
    1.   Reduction
    2.   Consumption
    3.   Diduction
    4.   Multiplication
14. ........... lens is used to correct the defect of vision termed as presbyopia.
    1.   Convex
    2.   Biological
    3.   Contact
    4.   Bifocal
15. Which instrument is used to know the presence of an electric current?
    1.   Micrometer
    2.   Voltmeter
    3.   Nenometer
    4.   Galvanometer
16. What is the chemical formula of Cryolite?
    1.   NaAI₃ F₆
    2.   Na₃ AIF ₆
    3.   NaAIF₃
    4.   NaAIF₆
17. Non metal-oxide + Base --> ..............?
    1.   Salt + Base
    2.   Salt + Water
    3.   None
    4.   Base + Water
18. What is periodic time of Halley's comet?
    1.   79 Years
    2.   69 Years
    3.   67 Years
    4.   76 Years
19. 1μA = ..........mA
    1.   10³
    2.   10^-3
    3.   10^-8
    4.   10⁸
20. Who had first observed the magnetic effect of an electric current?
    1.   Ampere
    2.   Faraday
    3.   Oersted
    4.   Volta
21. Due to which phenomenon of light does a tyndall effect result?
    1.   Refraction
    2.   Scattering
    3.   Reflection
    4.   Dispersion
22. Which of the following material has maximum optical density?
    1.   Water
    2.   Diamond
    3.   Oil
    4.   Glass
23. Which acid is called king of chemicals?
    1.   HCI
    2.   H₂ S0₄
    3.   HNO₃
    4.   Na₃ AIF ₆
24. Diameter of hydrogen atom is ............ n.m .
    1.   0.01
    2.   0.1
    3.   1.01
    4.   1.0
25. Which of the following is used in production of water gas ?
    1.   Coke
    2.   Sodiam
    3.   Pure Water
    4.   Coal gas
26. 250 ml aqueous solution is prepared by dissolving 4 moles of HCI in water, what will be the molarity of the solution ?
    1.   16M
    2.   14M
    3.   11M
    4.   12M
27. Which of the following is an alloy?
    1.   24 carat gold
    2.   22 carat gold
    3.   18 carat gold
    4.   All
28. Distance of geostationary satellite from the earth's surface is .......... km.
    1.   53,786
    2.   35,786
    3.   36,785
    4.   38,765
29. The SI unit of electric charge is .............
    1.   volt
    2.   coulomb
    3.   ampere
    4.   watt
30. Which of the following is strong acid ?
    1.   NaCI
    2.   H₂ SO₄
    3.   CH₃ COOH
    4.   NH₄ CI